Stop-motion for spinning-frames.



E. G. BROOKSHIRE & H. G. WILES.

STOP MOI' ION FOR SPINNING FRAMES. APPLICATION EILED AUG. so, 1913.

Patented Aug. 25, 19M

2 SHEETSSHEET1 40/ G WM) INVENTORS Q "mum" Eg WITNESSES ATTORNEY E. GSBROOKSHIRE & H. G. WILES. STOP MOTION FOR SPINNING FRAMES. APPLICATION FILED AUG. 30, 1913. I

1, 1 O8, 1 27 Patented Aug. 25, 1914.

2 SHEETBBHBET 2.

WITNESSES UNITED STATES PATENT OFFICE.

ESTON G. BROOKSHIR-E AND HERBERT G. WILES. OF KANSAS CITY, KANSAS.

STOP-MOTION FOR SPINNING-FRAMES.

To all whom it may concern Be it known that we, EsToN G. Bnoolo s11 1m: and HERBERT G. lVILEs, citizens of the United States, residing at Kansas City, in the county of \Vyandotte and State of Kansas, have invented a new and useful Stop- Motion for Spinning-Frames, of which the following is a specification.

This invention has reference to improvements in stop motions for spinning frames, and its object is to provide an automatic stop motion which will act when the bobbins run over, and thereby save loss of time and material.

In accordance with the present invention there is provided a mechanism which is anton'iatically set by the starting of the frame and in the event of, any of the bobbins running over the stop motion is released and automatically moves in a direction to shift the belt from the tight to the loose pulley when the motion is employed on a machine so driven, but in the event of other types of drive the same operation takes place.

Considering the driving power as being applied through a belt there is provided a latch lever movable by the shift rod of the belt shifter in a direction to compress a spring and at the same time latch the lever in the new position. Connected to the traverse rodof the frame is a member movable w1th the traverse rod in a d1rect1on to engage a portion of the latch structure in a manner to release the latched lever to the action of the spring, whereupon the belt is shifted to the loose or idle pulley and the frame stops. The operation is entirely automatic and hence requires no attention from the operator.

The invention will be best understood from a consideration of the following detailed description, taken in connection with the accompanying drawings forming a part of this specification, with the further understz'mding that while the drawings show a practical form of the invention, the latter is not confined to any strict conformity with the showing of the drawings, but may be changed and modified so long as such changes and modifications mark no mate? rial departure from the salient features of the invention.

In the drawings :Figure 1 is an elevation with some parts in section of the im- 5 proved stop motion and also showing a small poption of a spinn ng frame, the stop mo- Patented Aug. 25, 1914.

Serial No. 787,543.

of parts of the spinning frame showing the invention attached. Fig. 4 is a front elevatlon with some parts in sect on of the stop motion illustrated in Fig. 1, together \vlth adjacent portions of the spinning frame and showing the parts in the latched position.

- Referring to the draw'ingsthere is shown a portion of a spinning frame 1 which may be of ordinary construction, and, therefore, requires no detailed description, wherefore reference will be made to only such parts as coact directly with the structure of the present invention, such parts including a belt shifter 2, a drive belt 3, tight and loose pulleys 4 and 5, res ectively, a shifter rod 6 and a traverse r0 7 as well as one end frame 8 of the machine.

There is provided a bracket 9 which in the particular construction illustrated is of substantially U-shape with bifurcated legs 10; 11. respectively.

The bracket is made fast to a cross member 12 of the frame 8 by a bolt 13 having one end extended in the form of a plain rod 14 and located about midway of andsnbstantially parallel to the legs 10 and 11.

The bifurcated leg 10 is formed with passages for a pivot pin 15 traversing it, and mounted on this pivot pin is a lever 16 having a long leg 17 and a short leg 18. The long leg terminates in a short finger 19 oehind which engages a bent end 20 of a rod 21 made fast by a collar 22 or otherwise to the shifter rod 6, the collar 22 permitting adjustment of the rod 21 lengthwise of the rod 6 as may be needed.

The short leg 18 of the lever 16 has a passage 23 therethrough in position to be traversed by the rod 14, and betweenthe short leg 18 and the bracket 9 the rod 14 is surrounded by a spring 24 tending at all times to hold the long leg 17 of the lever 16 in engagement with the end 20 of the rod 21, and the arrangement is such that the spring 24 is always under considerable compression even when in its relatively extended position, as shown in Fig. 1, and in this position the lever 16 is so located that the belt 3 is on the loose pulley 5. \Vhen the shifter rod 6 is moved in a direction to cause the belt 3 to leave the pulley 5 and move on to yoke of the bracket 9, thereby correspond,

ingly compressing the spring 24:.

Mounted in the bifurcated arm 11 oft the 25 having one yoke 9 is an angle latch lever arm 20 provided Withan elongated wear plate 27 which adjacent to the angle of the 10 lever-1'25 terminates lever has anbther angle arm 29 which may be liatfy enough to overb'alance the arm 27,

- "but this overbalancing move over the wear plate 27 and ultimately Mounted on, the traverse, rod 7 i 's a collar v \may 'ib e held ultras by set screws s th tth j cfllair can be re dily adjusted finger 36 projecting from oneside and e rw the, later rie'ajrits free end and Where the arm 29 is engaged by the rodext'en'si'on' 38 it 40 may havea face 39 sorelated tothe'rod 38 and to; the pin 32 that the requisite I t, rocking of the lever 25 may take place Withp out liability of escape of the rod, 38 therefrom. 7

:Let it be assumed'thattheparts are in the position shown in Fig. 1, in which case the end 33 of the lever 16 is in engagement with theiace' oftheplate 27 andthe spring 24: 15 extended, while the belt 3 ison the" pulley "5 and the end ,20 of the rod 21 is in engage- .mentwith the end 19 of the arm 17. Now, when the spinning frame ,is started, the

il-shifter rod Sis moved toward the left as viewedinFig, 1,lthus carrying the belt 3 statu e, pulley to the pulley 4 and at the same time rocking the lever 16 on its pivot A 15 I in a dire ction, to compress the spring 24 andcarrythe end 33- of the arm 18 behind shoulder 28 the lever 25 yielding, for the pnrposeffand then returning undertheac-f nt on ofjtheiweight 3Q to hold theshoulder end 28 of thepla'te 27 in engagement with E the plate 33on the lever 16, The engagement may beinade more certainby the formation of a notch inthe ar'm26 at the shoulin "a"shoulder 28. The

' be1t8from'the tight .pulleyi lv on to the loose this extension'fil is on;'thelside ofthepivot pin 32"of thelever- 30,; or the prepdnderating enough. causing "the" lever atli of "the shorter fthe latch ed position against the de r end 28 of the plate As the bobbins of the spinning frame fill, the traverse rod is moved toward the end 8 of the frame and the rodpB'Z participates in this movement. When the bobbins have become filled to a predetermined extent the end 38 of the rod 37 makes contact with the edge 39 of the arm 29' and causes a movement of the lever 25 to carry the shoulder 28 out of the path of the end 33 of the lever 16'unti-l ultimately the lever escapes from the ,latch .notch; and shoulder and the spring 24 becomes active to ock the lever-.lfi ina direction toshift the rod hand-belt shifter %2; so as to carry the pulley 5, whereupon the, spinning, frame stops. This prevents the bobbins from hverrunning. and effects ta: saving both ;in

time and material. e

' E "The-application of the devicejto: existing;

spinnihg machines requiresno modification at-all of such machlnes votherv than the pos-v s'ble boring of a hole through the cross piece l2-of one of the end iframes, all-the rest of the parts being attachable to the frame withhut-=any ohangeawhatever in the structure thereto. 16 H" i a 8 When it is desired to again start the ma-. chine,-the shifter rod 6-is manipulated in theusual manner and the' stop motion structure is thus 'automatically reset. i

' The traverse rod is a part of machines as already installed, and 'its motion is utilized ,for' the operation of the "stop motion.- l -Thepresent inventi'ondoes notinterfere in any manner with the spinning'frame, but 1 adds greatly to its efficiency by automatically stopping the machine when thebobbins 'are'full. I

l 'What is claimed is: a a

1; A stop motion'attachinent for a spinning frame provided with-a shifter and a traverse rod, comprising a rockable latch lever, a support therefor constructed for attachment to the frame of the machine, means constructed for attachment to the shifter rod ,aindto' engage the rockable latch lever, a ;'latch member separate from and in operative lrelation to the latch lever to lock the latter jin one position, means constructed for attachment to the traverse rod and shaped to enga'gethe'latch member to operate it on a 1 predetermined movement of the traverse rod, gand a spring carriedfby the supporting. lineans for the latch lever for movingthe latter ina direction to actuate the shifter ,tostopthe machine.

2i Ina spinning frame provided with a shifter rod and atr'averserod, a bracket having spaced arms and adapted tobe atitached to the frame of the machine, a lever mounted'on one of the arms of the bracket, another lever mounted on the other arm of 1 the braekehand said'levers having coacting latch parts, a spring carried by the bracket in position to move the first-named lever in one direction, the second-named lever being normally constrained to move in a direction to engage and hold the first-named lever, a. member adapted to be attached to the shifter rod and having a portion shaped to engage the corresponding end of the first-named lever, and a member having means for attachment to the traverse rod and shaped to engage the second-named lever to move it in opposition to its normal tendency.

3. A stop motion attachment for spinning frames comprising a bracket adapted to be attached to the spinning frame, two rock levers mounted on the frame with coacting ends shaped to cause a latching together of the levers, one of the levers having a normal tendency to move toward the other and the other lever being provided with a spring tending to move it in a direction away from its latched position, and means adapted to be attached to moving parts of the spinning frame for actuating the respective levers.

4. In a spinning frame provided with a shifter rod and a traverse rod, a latch lever carried by a fixed portion of the spinning frame, a spring tending to move the latch lever in one direction, a connection between the latch lever and the shifter rod of the spinning frame, another lever having a normal tendency toward the latch lever and shaped to engage and hold the latch lever against the tendency of the spring, and means adapted tobe attached to the traverse rod and movable thereby into engagement with the second-named lever to cause its disengagement from the latch lever.

In a spinning frame provided with a shifter; rod and a traverse rod, a bracket adapted to be attached to a fixed portion of the spinning frame, a bolt for connecting the bracket to the fixed portion of the spinning frame and provided with an extension, a lever mounted on the bracket with one arm traversed by the extension of the bolt, a spring surrounding the bolt extension and engaging the corresponding arm of the lever, a rod adapted to be attached to the shifter rod of the spinning frame and shaped to engage the other arm of the lever, an angle lever mounted on the bracket and having one arm in the path of the first-named arm of the firstnamed lever andshaped to engage and latch the first-named arm of the first-named lever when the shifter rod is in one position, said second-named lever having a normal tendeney toward the first-named lever, and a rod having means for attachment to the traverse rod and shaped to engage the second-named lever to move it against its normal tendency to cause the release of the first-named lever from its latched position.

In testimony, that we claim the foregoing as our own, we have hereto affixed our signatures in the presence of two witnesses.

ESTON GUY BROOKSHIRE. HERBERT GEORGE ILES. \Vitnesses GLEN P. BROOKSHIRE,

lV. H. Rooms. 

